Mechanism of Interaction of Cloud Point Polymers with Platinum and Gold in Flotation of Finely Disseminated Precious Metal Ores

ABSTRACT

Prospects of the application of new class of reagents - cloud point polymers with functional groups on the gold and platinum for extraction of micro- and nanoparticles of noble metals from fine grinded ores and by-products were considered. The reaction of synthesis of cloud point copolymer on the basis of N-isopropylacrylamide and N-acryloxysuccinimide, and its subsequent modification by groups of thioamine (TMPA), semicarbazide up (TMPB) and phosphine (TMPPh) were presented. Selective interaction of reagents TMPA, TMPB and TMPPh with noble metals and their prospective use as effective flocculants and reagents-collectors in flotation of refractory gold and platinum ores was revealed.

KEYWORDS:

• Artificial coating
• collectors
• electrochemical properties
• flotation
• gold
• micro-sized and nano-sized particles
• minerals
• new formations of noble metals
• platinum
• SEM
• sorption

Acknowledgments

The authors thank E. V. Koporulina and I. G. Zimbovskiy for research assistance by electron microscopy and flotation.

Funding

This work was supported by the Academician V.A. Chanturiya Scientific School (Scientific Schools of Russian Federation, project number 748.2014.5).

Additional information

Funding

This work was supported by the Academician V.A. Chanturiya Scientific School (Scientific Schools of Russian Federation, project number 748.2014.5).